Large Incoming Asteroid, NOT a near miss!

[Maysea]

This was a short dream last night.

I'm in deep space watching a object, most probably a asteroid.
It looks like a rock, a very large oblong shape...
I hear these words, "This is NOT a near miss, I repeat, this is NOT a near miss!

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For clarification purposes...

The object was elongated in shape...massive
The voice...much like if a real emergency was happening and someone was saying, this is NOT a drill, I repeat, this is NOT a drill
The voice was male, masculine...
Also heard wailing sirens like from world war two...or perhaps used on military bases today